I suggested this to Mark (private on Skype): First of all, Twist of Fate should be mentioned in the FAQ page. And I don't know how it is on RealTibia, but it would be good at Shadowcores to have any type of magic effect when buying blesssings. I don't know how it is when you buy the ordinary blessings, but if you buy all blessings or if you buy twist of fate a magic effect will appear on you, such as blue sparkles or perhaps a holy magic effect. And of course, just as you said. Twist of Fate should be listed when using a Cermonial Ankh, just to be super clear.
Thanks for your contribution, I'm sure that this will be implemented soon enough.